Jenkins Pipeline-在shell中插入变量会创建新行 [英] Jenkins Pipeline - inserting variable in shell creates a new line

问题描述

我在jenkins文件中使用Choice参数来选择环境，如下所示:

I am using Choice param in my jenkins file to select environment as follows:

pipeline {
     agent any
     parameters {
    choice(
        name: 'ENVIRONMENT_URL',
        choices: "https://beta1.xyz.com\nhttps://beta2.xyz.com\nhttps://beta3.xyz.com",
        description: 'interesting stuff' )
  }

在Stage部分，我有以下内容

 stage('execute tests') {
            steps {
                script {
                        sh """URL=${ENVIRONMENT_URL} npm run e2e:tests"""
                        sh 'echo -e "\nTest Run Completed.\n"'   
                }
             }   
            }

但是，当我通过选择添加的选择参数来运行管道作业时，将执行以下操作(插入的选择参数会创建换行符):

However, when i run the pipeline job by selecting the choice parameter i added, the following gets executed (the inserted choice param creates a line break):

+ URL=https://beta1.xyz.com
+ npm run e2e:tests

使用变量会导致换行，这就是问题所在. 我尝试了不同的方法来避免换行.尝试使用变量，但这没有帮助.尝试使用不同的报价，但没有.

Using the variable is causing a line break and that's what is causing issue. I have tried different ways to avoid line break. Tried using a variable but that didn't help. tried with different quotations, that didn't either.

如何避免换行?

推荐答案

您可以在String类类型上使用trim方法来删除结尾的空格和换行符:

You can use the trim method on a String class type to remove trailing whitespace and newline:

sh "URL=${params.ENVIRONMENT_URL.trim()} npm run e2e:tests"

请注意，我还指定了您的参数在params映射中，并删除了用于多行字符串格式的三引号.

Note I also specified your parameter is in the params map and removed the triple quotes as those are for multiline string formatting.

或者，您可以将选项指定为数组而不是多行字符串. choices参数将显示为:

Alternatively, you can specify the choices as an array instead of as a multiline string. The choices argument would then appear like:

choice(
  name:        'ENVIRONMENT_URL',
  choices:     ['https://beta1.xyz.com', 'https://beta2.xyz.com', 'https://beta3.xyz.com'],
  description: 'interesting stuff'
)

任何一种解决方案都可以解决您的问题.

Either solution would fix your issue.

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